Albedo

Added the Light builder from unascribed's Albedo fork. Should make this version pretty much compatible with any mod that previously added Albedo support for his version.

Reformatted some float constants in the shaders because early GLSL is just...my favorite. Should fix a couple of startup issues, sorry for the delay! :<

Marking this build as beta so that it'll be a bit more visible, and because I haven't seen very many issue reports so far. Please report issues and as always with this mod, it might explode when you toss it in an instance with random stuff. :P